Heavy rain caused a restart of the game on Thursday Genesis Open first round leaderboard-8 JB Holmes (US); -7 J Spieth (USA); -5 K Bradley (USA), J Thomas (USA), T Finau (USA), A Scott (Aus), P Rodgers (USA), K Hickok (United States) Other selected: -1 T Hatton (P), P Casey (Eng), T Fleetwood (Eng), T Woods (US); Level D Willet (1) +1 R McIlroy (NI), P Mickelson (USA)
JB Holmes leads the Genesis Open with one shot from fellow American Jordan Spieth after the first round on Friday after the heavy rain of Thursday was completed.
Long waiting times meant that the majority of the field did not start their opening round until Friday at Riviera Country Club.
The organizers even took the unusual step of destroying the scores of those who had gone horribly out of conditions and enabling them to restart the round.
Holmes scored an eight-under-row 63 to take the lead in Los Angeles.
Speeth said he was "fortunate" to be able to start his round again after he had initially set course in increasing rain and deterioration of sight, in which he birdied the three par-fives and also twice chipped for birdie.
The American said he came back to play "wonderful" on the last six holes on Friday.
"Yesterday was a gri and to begin with," he added. "I really had the luck to finish my short game, to get a couple.
" Those were bonuses that could have been very good bogeys. "
Americans Justin Thomas and Tony Finau and Adam Scott in Australia belonged to a group of six players to finish at five under.
Phil Mickelson saw his unlikely par on Riviera & # 39; s 10th – where he was in three bunkers and hung from the sand – written off as a play was restarted Thursday and finally ended on Friday last.
The fourteen largest champion Tiger Woods bought a one-under-par 70 , together with the English Tyrrell Hatton, Paul Casey and Tommy Fleetwood, with Northern Ireland Rory McIlroy two shots adrift
The second round immediately followed while some players were still completing their first Friday.